Veritas Volume Manager 5.0.1 Troubleshooting Guide, HP-UX 11i v3, First Edition, November 2009

note the entries for the snap objects, vol1_snp and SNAP-vol1_snp, that point to

vol1 and SNAP-vol1 respectively.

You can use such output to deduce the name of a volume’s DCO (in this example,

vol1_dco), or you can use the following vxprint command to display the name

of a volume’s DCO:

# vxprint [-g diskgroup] -F%dco_name volume

You can use the vxprint command to check if the badlog flag is set for the DCO

of a volume as shown here:

# vxprint [-g diskgroup] -F%badlog dco_name

This command returns the value on if the badlog flag is set. For the example

output, the command would take this form:

# vxprint -g mydg -F%badlog vol1_dco

Use the following command to verify the version number of the DCO:

# vxprint [-g diskgroup] -F%version dco_name

This returns a value of 0 or 20. For the example output, the command would take

this form:

# vxprint -g mydg -F%version vol1_dco

The DCO version number determines the recovery procedure that you should use.

See “Recovering a version 0 DCO volume” on page 31.

See “Recovering a version 20 DCO volume” on page 33.

Recovering from hardware failure

Recovery from failure of a DCO volume